When I took tookapic.com/photos/130104, I was a little self-confidence about focus very near to far without close aperture in macro shot.
But to be honest, I've suffered from chromatic aberration. Left of shadow part is blue everywhere! I was struggling with LR, I couldn't be reduced.
Today I back to basic of tookapic.com/photos/114025 . I setup minimum optical model in my messy workshop. Now I research about the condition of the least chromatic aberration.
Angle between checker chart and focusing glass is over 90 degree. When I turn on strong lamp, checker chart image through the lens projected on the glass.